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SubjectRe: [PATCH] x86-64: disable the GART before allocate aperture
On Fri, Jun 22, 2007 at 12:19:15PM -0700, Yinghai Lu wrote:
> [PATCH] x86-64: disable the GART before allocate aperture
> For K8 system: 4G RAM with memory hole remapping enabled, or more
> than 4G RAM installed. when mem is allocated for GART, it will do
> the memset for clear. and for kexec case, the first kernel already
> enable that, the memset in second kernel will cause the system
> restart. So disable that at first before we try to allocate mem for
> it.

Why does the memset in the second kernel cause a system restart?

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